21110488

素因数分解:

$2^3\times 7^1\times {\mathrm{479}}^1\times {\mathrm{787}}^1$

素因数の和:1279

約数の個数: 32

約数和(自身を含む): 45388800

約数和(自身を除く): 24278312

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 479, 787, 958, 1574, 1916, 3148, 3353, 3832, 5509, 6296, 6706, 11018, 13412, 22036, 26824, 44072, 376973, 753946, 1507892, 2638811, 3015784, 5277622, 10555244, 21110488]

約数ペア:

[(1, 21110488), (2, 10555244), (4, 5277622), (7, 3015784), (8, 2638811), (14, 1507892), (28, 753946), (56, 376973), (479, 44072), (787, 26824), (958, 22036), (1574, 13412), (1916, 11018), (3148, 6706), (3353, 6296), (3832, 5509)]